WO2019028724A1 - Procédé de détermination d'opération cible, appareil de détection de pression et dispositif terminal - Google Patents

Procédé de détermination d'opération cible, appareil de détection de pression et dispositif terminal Download PDF

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Publication number
WO2019028724A1
WO2019028724A1 PCT/CN2017/096754 CN2017096754W WO2019028724A1 WO 2019028724 A1 WO2019028724 A1 WO 2019028724A1 CN 2017096754 W CN2017096754 W CN 2017096754W WO 2019028724 A1 WO2019028724 A1 WO 2019028724A1
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WIPO (PCT)
Prior art keywords
pressure
piezoelectric ceramic
detecting device
voltage
controller
Prior art date
Application number
PCT/CN2017/096754
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English (en)
Chinese (zh)
Inventor
王冬立
李辰龙
柯有和
赵辛
王涛
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201780079328.9A priority Critical patent/CN110088716B/zh
Priority to CN202110189680.6A priority patent/CN113050824B/zh
Priority to PCT/CN2017/096754 priority patent/WO2019028724A1/fr
Publication of WO2019028724A1 publication Critical patent/WO2019028724A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04105—Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position

Definitions

  • the present application relates to the field of terminal devices, and in particular, to a method for determining a target operation, a pressure detecting device, and a terminal device.
  • the button function can be enriched by introducing a pressure sensor.
  • the pressure sensor can detect the pressing force applied to the button, and then trigger different applications according to different pressing forces, so that the same button can realize different button functions according to different pressing strengths.
  • the existing solution combines a pressure sensor and a linear motor, and the pressure sensor detects the pressing force applied by the button, and outputs different driving voltages to the linear motor according to different pressing forces, so that the spring oscillator in the linear motor is at different driving voltages.
  • the force is generated under control and the force is transmitted to the button.
  • the linear motor itself has the characteristics of complicated structure and large size.
  • the existing solution requires an additional pressure sensor, and the pressure sensor and the linear motor in the terminal device require a large size space, and therefore, the existing The pressure sensor combined with the linear motor solution occupies a large size space, which makes the installation design more difficult.
  • the embodiment of the present application provides a method for determining a target operation, a pressure detecting device, and a terminal device, which can reduce the space size of the pressure detecting device and reduce the cost of the pressure detecting device.
  • an embodiment of the present application provides a method for determining a target operation, the method being applied to a pressure detecting device, the pressure detecting device comprising: a controller and a piezoelectric ceramic, the controller and the piezoelectric ceramic phase Connection, the pressure detection method includes:
  • the controller connected to the piezoelectric ceramic may determine the pressure value of the first pressure according to the first voltage;
  • the controller determines the target operation according to the pressure value of the first pressure, and the target operation is a preset pending operation corresponding to the pressure value of the first pressure.
  • the embodiments of the present application have the following advantages:
  • the piezoelectric ceramic is subjected to the first pressure, so that the piezoelectric ceramic generates the first shape variable, and the piezoelectric ceramic generates the first voltage, and the piezoelectric ceramic outputs the first voltage to the controller, and the controller
  • the first voltage is detected to obtain the pressure value of the first pressure.
  • the first pressure is the external pressure received by the piezoelectric ceramic
  • the target operation is selected according to the first pressure.
  • the above pressure detecting method does not need to assist a device such as a linear motor, and only a special pressure sensor such as a piezoelectric ceramic can be used. It should be noted that the pressure sensor needs to be used with a corresponding controller, in the prior art. No exception. Therefore, the embodiment of the present application can effectively reduce the space size of the pressure detecting device, and at the same time save the cost of the pressure detecting device.
  • the controller determines the target operation according to the pressure value of the first pressure, including:
  • the controller determines the target operation according to the pressure value of the first pressure and the first preset relationship, wherein the first preset relationship is a one-to-one correspondence between each first pressure range and each preset operation, the controller determines, according to the pressure value of the first pressure, the first pressure is within a first pressure range of each of the first pressure ranges, and further, the controller Among the preset operations, an operation corresponding to a first pressure range to which the first pressure belongs is determined as the target operation.
  • the foregoing method further includes:
  • the controller determines a second voltage according to a pressure value of the first pressure and a second preset relationship, where the second preset relationship is a correspondence between each second pressure range and each second voltage, where the first pressure is The pressure value is within a second pressure range of the respective second pressure ranges, and the second voltage is a second voltage of the respective second voltages.
  • the foregoing method further includes:
  • the piezoelectric ceramic When the piezoelectric ceramic receives the second voltage output by the controller, the piezoelectric ceramic generates a second shape variable according to the second voltage.
  • the controller passes the first voltage generated by the external pressure of the piezoelectric ceramic and feeds back to the piezoelectric ceramic through the second voltage, so that the piezoelectric ceramic generates a second shape variable, and therefore, the pressure is passed.
  • the detecting device can not only detect the external pressure, but also give feedback to the external pressure.
  • the pressure detecting device further includes: a fingerprint sensor, the fingerprint sensor is in contact with the piezoelectric ceramic; and the piezoelectric ceramic receives the first pressure to generate the first shape variable, including:
  • the piezoelectric ceramic Based on the force applied to the fingerprint sensor, the piezoelectric ceramic receives the first pressure and produces a first shape variable.
  • the external force is transmitted through the fingerprint sensor, which not only can transmit the external pressure to the piezoelectric ceramic, but also realize the fingerprint verification function of the fingerprint sensor.
  • the pressure detecting device further includes a housing, the piezoelectric ceramic is attached to the inner side of the housing, and the controller is located in the housing, and the piezoelectric ceramic receives the first pressure to generate the first shape variable, including:
  • the piezoelectric ceramic receives the first pressure to generate a first shape variable based on a force applied to the outside of the housing.
  • an embodiment of the present application provides a pressure detecting apparatus, including:
  • controller and a piezoelectric ceramic, wherein the controller is coupled to the piezoelectric ceramic
  • the piezoelectric ceramic is configured to receive a first pressure and generate a first shape variable
  • the piezoelectric ceramic generates a first voltage according to the first shape variable
  • the controller is configured to determine a pressure value of the first pressure according to the first voltage
  • the controller is further configured to determine a target operation according to the pressure value of the first pressure, where the target operation is a preset operation to be performed corresponding to the pressure value of the first pressure.
  • the pressure detecting device in the present application has the following advantages:
  • the pressure detecting device includes a controller and a piezoelectric ceramic. Therefore, the above pressure detecting method does not need to assist a device such as a linear motor, and only a special pressure sensor such as a piezoelectric ceramic can be used. It should be noted that the pressure sensor is It needs to be used with the corresponding controller, and the prior art is no exception. Therefore, the embodiment of the present application can effectively reduce the space size of the pressure detecting device, and at the same time save the cost of the pressure detecting device.
  • the controller is specifically configured to:
  • controller is further configured to perform the following steps:
  • the piezoelectric ceramic is also used to perform the following steps:
  • the pressure detecting device includes: a fingerprint sensor, one side of the fingerprint sensor is attached to the piezoelectric ceramic; and the piezoelectric ceramic is specifically used for:
  • Receiving the first pressure generates the first shape variable based on a force applied to the fingerprint sensor.
  • the pressure detecting device further includes: a first housing, a surface of the first housing has a through hole, the fingerprint sensor is located in the through hole, the piezoelectric ceramic and The controller is located within the first housing.
  • the pressure detecting device further includes: a second housing; the fingerprint sensor is located in the second housing, and the other side of the fingerprint sensor is attached to the second housing, The piezoelectric ceramic and the controller are located within the second housing.
  • the pressure detecting device further includes: a third housing, the piezoelectric ceramic is attached to the inner side of the third housing, and the controller is located in the third housing;
  • the piezoelectric ceramic is specifically configured to receive the first pressure to generate the first deformation amount based on a force applied to an outer side of the housing.
  • the pressure detecting device further includes: a fourth casing and a button, the fourth casing has a through hole, and the button is attached to the piezoelectric ceramic to place the button In the through hole, the piezoelectric ceramic is located in the fourth housing, and the controller is also located in the third housing;
  • the piezoelectric ceramic is specifically configured to receive the first pressure to generate the first shape variable based on a force applied to the button.
  • the embodiment of the present application provides a terminal device, where the terminal device includes: at least one pressure detecting device according to the second aspect, and the implementation manner of any one of the second aspects.
  • an embodiment of the present application provides a computer readable storage medium, configured to store computer software instructions used by the pressure detecting device, when executed on a computer, to enable the computer to perform any of the foregoing first aspects.
  • an embodiment of the present application provides a computer program product comprising instructions, which when executed on a computer, enable the computer to perform the method of determining a target operation of any of the above first aspects.
  • FIG. 1 is a schematic structural diagram of a system structure for determining a target operation in an embodiment of the present application
  • FIG. 2 is a schematic view showing a positive piezoelectric effect of a piezoelectric ceramic in an embodiment of the present application
  • FIG. 3 is a schematic diagram of a negative piezoelectric effect of a piezoelectric ceramic in an embodiment of the present application
  • FIG. 4 is a schematic diagram of an embodiment of a method for determining a target operation in an embodiment of the present application
  • Figure 5 is a plot of the frequency and amplitude of different cells in the skin tissue in the embodiment of the present application.
  • FIG. 6 is a schematic structural view of a pressure detecting device according to an embodiment of the present application.
  • FIG. 7 is another schematic structural diagram of a pressure detecting device according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of applying four piezoelectric ceramics to a mobile phone terminal in an embodiment of the present application.
  • FIG. 9 is a schematic diagram of a working principle of the pressure detecting device in the embodiment of the present application.
  • the embodiment of the present application provides a method for determining a target operation, a pressure detecting device, and a terminal device, which can reduce the space size of the pressure detecting device and reduce the cost of the pressure detecting device.
  • piezoelectric ceramic 101 and the controller 102 are included, and the controller 102 is connected to the piezoelectric ceramic 101.
  • piezoelectric ceramics are functional ceramics with piezoelectric effect and are one of piezoelectric materials, in which piezoelectric effect refers to stress-induced polarization (or electric field), or induced by electric field ( Or the phenomenon of strain, the former is called the positive piezoelectric effect, the latter is called the negative piezoelectric effect, and the two become the piezoelectric effect.
  • the positive piezoelectric effect of the piezoelectric ceramic is as shown in Fig. 2. Due to the external force applied to the piezoelectric ceramic, the piezoelectric ceramic itself generates vibration, and the piezoelectric ceramic is induced to generate an electric field (or electric power), and the negative pressure of the piezoelectric ceramic. Electrical Effects As shown in Fig. 3, an electric field (or electric power) is applied to both faces of the piezoelectric ceramic to cause deformation (or vibration) of the piezoelectric ceramics.
  • the method for determining the target operation in the present application is applied to a pressure detecting device including a controller and a piezoelectric ceramic, as shown in FIG. 4, a method for determining a target operation in the present application.
  • Embodiments include:
  • the piezoelectric ceramic receives the first pressure and generates a first shape variable.
  • the piezoelectric ceramic receives a first pressure applied to the piezoelectric ceramic by the outside, and further, the piezoelectric ceramic generates a first shape variable.
  • the piezoelectric ceramic generates a first voltage according to the first shape variable.
  • the piezoelectric ceramic since the piezoelectric ceramic has a positive piezoelectric effect, the piezoelectric ceramic generates a first voltage according to the first shape variable, and in the positive piezoelectric effect, the first shape variable and the first voltage have a positive correlation relationship, In short, the first deformation The larger the amount, the larger the first voltage generated by the piezoelectric ceramic, and the smaller the first shape variable is, the smaller the first voltage generated by the piezoelectric ceramic is, and the piezoelectric ceramic outputs the first voltage to the controller. Or the controller detects the first voltage generated by the piezoelectric ceramic.
  • the pressure detecting device further includes a fingerprint sensor, and the fingerprint sensor is attached to the piezoelectric ceramic, and the piezoelectric ceramic generates a first shape variable while pressing the fingerprint sensor, thereby A first voltage is generated.
  • the pressure detecting device further includes a housing that fits the piezoelectric ceramic to the inside of the housing, and the controller is also located inside the housing, and presses the housing from the outside of the housing. When it is bonded to the piezoelectric ceramic, the piezoelectric ceramic generates a first shape variable to generate a first voltage.
  • the pressure detecting device further includes a fingerprint sensor and a casing, and the following two situations exist:
  • the housing covers the fingerprint sensor and the piezoelectric ceramic. Specifically, one side of the fingerprint sensor is attached to the inner side of the housing, and the other side of the fingerprint sensor is attached to the piezoelectric ceramic.
  • the controller, the fingerprint sensor and the piezoelectric ceramic are both Located on the inner side of the casing, when the casing and the fingerprint sensor are pressed from the outside of the casing, the piezoelectric ceramic generates a first shape variable, thereby generating a first voltage;
  • a through hole is formed in the surface of the casing, a fingerprint sensor is placed in the through hole and the surface is exposed to the casing. Specifically, the fingerprint sensor is attached to the piezoelectric ceramic. At this time, pressing the fingerprint sensor in the through hole can make The piezoelectric ceramic produces a first shape variable to generate a first voltage.
  • the material of the above casing may be glass or metal, and the present application does not impose any limitation.
  • the controller determines a pressure value of the first pressure according to the first voltage.
  • the piezoelectric ceramic outputs the first voltage generated by the piezoelectric ceramic to the controller, the controller receives the first electric power, and obtains the pressure value of the first pressure according to the formula (1) and the first voltage, the first pressure is the outside Directly or indirectly acting on the pressure of the piezoelectric ceramic.
  • the first voltage has a positive correlation with the pressure value of the first pressure, and the specific relationship is as follows:
  • U is the first voltage
  • h is the thickness of the piezoelectric ceramic
  • A is the force area of the piezoelectric ceramic
  • F is the first pressure
  • g 33 is the piezoelectric voltage constant
  • the piezoelectric voltage corresponding to the different piezoelectric ceramics The constants are different.
  • the controller determines a target operation according to a pressure value of the first pressure.
  • the controller determines the target operation according to the pressure value of the first pressure, wherein the target operation is a to-be-executed operation preset according to the pressure value of the first pressure.
  • the controller determines the target operation according to the pressure value of the first pressure and the first preset relationship, where the first preset relationship is a one-to-one correspondence between each first pressure range and each preset operation, and the control is performed.
  • the preset operation corresponding to a first pressure range to which the pressure value of the first pressure belongs belongs to the target operation according to the first preset relationship.
  • the controller can determine the pressure range to which the pressure value of the first pressure belongs according to the pressure value of the first pressure, and determine the preset operation corresponding to the pressure value of the first pressure according to the first preset relationship.
  • the controller can determine different target operations according to different pressure values of the first pressure. Therefore, the present application can realize different operations according to different pressing strengths.
  • the pressure detecting device is placed in a mobile phone or a wearable device, and the pressure range can be simply divided into a pressure range one and a pressure range two, the pressure range one is F1 ⁇ F ⁇ F2, and the pressure range two is F2 ⁇ F ⁇ F3, F is the pressure value of the first pressure obtained.
  • the pressure range is lightly pressed and the pressure range is heavy.
  • the target operation corresponding to the pressure range may be, for example, returning to the previous interface, and the target operation corresponding to the pressure range 2 may be, for example, returning to the main interface.
  • the piezoelectric ceramic When a first pressure is applied to the piezoelectric ceramic, the piezoelectric ceramic generates a first shape variable and generates a first voltage according to the first shape variable.
  • the controller can obtain the pressure value F of the first pressure according to the first voltage. If F is in the pressure range one, the controller performs an operation of returning to the previous interface; if F is in the pressure range two, the controller performs an operation of returning to the main interface.
  • the specific pressure range of the pressure range one and the pressure range two may be set according to actual application scenarios, and the present application does not impose any limitation.
  • the pressure range can not only be divided into two, but also can be subdivided according to actual needs, so that the pressure values in different pressure ranges correspond to different target operations, making the operation more diversified and not doing here. limited.
  • the controller determines the second voltage according to the pressure value of the first pressure and the second preset relationship.
  • the second preset relationship is a correspondence between each second pressure range and each second voltage, and the frequency and amplitude of each second voltage are different, and each second pressure range in the second preset relationship may be the same.
  • Each of the first pressure ranges in a predetermined relationship may be the same or different.
  • the controller After determining the pressure value of the first pressure, the controller determines a second voltage corresponding to a second pressure range to which the pressure value of the first pressure belongs according to the second preset relationship.
  • human skin tissue consists of a stratum corneum, a transparent layer, and the like, and different layers have different cells.
  • curve 1 is the frequency and amplitude that the Merck cell complex in the skin tissue can perceive
  • curve 2 is the frequency and amplitude that the Meishi body in the skin tissue can perceive
  • curve 3 is in the skin tissue.
  • the frequency and amplitude of the Brazilian genus can be perceived
  • curve 4 is the frequency and amplitude that the riffinic body can be perceived in the skin tissue; the distribution of the above four cells in the human skin tissue (including depth) is different, so different Frequency and vibration of different amplitudes give people different feelings.
  • the second preset relationship may be set according to the relationship between the frequency and the amplitude shown in FIG. 5 such that the frequency and amplitude of the second voltage correspond to the frequency and amplitude shown in FIG. 5, that is, according to the second Voltage, piezoelectric ceramics can produce vibration feedback that the user can perceive.
  • the second preset relationship may also be a correspondence between each second pressure range and each second voltage group, and the controller may determine the pressure of the first pressure according to the second preset relationship.
  • a second voltage group corresponding to a second pressure range to which the value belongs that is, a second voltage determining a plurality of different frequencies and amplitudes, for example, the controller can generate a second voltage having a frequency f and an amplitude A, the frequency a voltage of f/2 and an amplitude of A/2, and a voltage of f/4 and an amplitude of A/4, the controller then outputs the above three second voltages to the piezoelectric ceramic, thereby realizing the user Multi-level feedback of pressing, it should be noted that the frequency and amplitude between the above three voltages can be based on The attenuation law is determined, and the attenuation law can be determined according to a large amount of experimental data, which is not limited in this application.
  • steps 405 and 404 are not limited.
  • the piezoelectric ceramic generates a second shape variable according to the second voltage.
  • the controller outputs the second voltage to the piezoelectric ceramic. Due to the negative piezoelectric effect, the piezoelectric ceramic generates a second shape variable according to the second voltage, so that the user's finger and the like pressed on the surface of the piezoelectric ceramic can be Feel the vibration feedback of the piezoelectric ceramics.
  • the first voltage is greater than the second voltage.
  • the second deformation variable generated by the piezoelectric ceramic according to the second voltage is smaller than the first deformation variable generated by the piezoelectric ceramic receiving the first pressure.
  • the piezoelectric ceramic if the user applies a first pressure to the piezoelectric ceramic through the finger, the piezoelectric ceramic generates a first shape variable, and the controller determines the magnitude of the first pressure according to the first shape variable and determines the second voltage, and the piezoelectric ceramic is The second voltage produces a second shape variable and is fed back to the user's finger, at which point the user feels the feedback vibration of the applied pressure.
  • the above pressure detecting method does not need to assist a device such as a linear motor, and only a special pressure sensor such as a piezoelectric ceramic can be used. It should be noted that the pressure sensor needs to be used with a corresponding controller, in the prior art. No exception. Therefore, the embodiment of the present application can effectively reduce the space size of the pressure detecting device, and at the same time save the cost of the pressure detecting device.
  • Embodiment 2 As shown in FIG. 1 , an embodiment of the pressure detecting device in the present application includes:
  • the piezoelectric ceramic 101 and the controller 102, and the connection between the controller 102 and the piezoelectric ceramic 101 is as shown in FIG. 1;
  • the piezoelectric ceramic 101 is configured to receive a first pressure and generate a first shape variable, and generate a first voltage according to the first shape variable, wherein the first voltage has a positive correlation with the first shape variable;
  • the controller 102 is configured to obtain a pressure value of the first pressure according to the first voltage, and determine a target operation according to the pressure value of the first pressure, where the target operation is preset according to the pressure value of the first pressure. Perform the operation.
  • the controller 102 is specifically configured to: determine a target operation according to the pressure value of the first pressure and a first preset relationship, where the first preset relationship is each first pressure And a corresponding relationship between the range and the preset operation, wherein the pressure value of the first pressure is within a first pressure range of each of the first pressure ranges, and the target operation is one of the preset operations.
  • the controller 102 is further configured to: detect the first voltage to obtain the pressure value of the first pressure, and then use the pressure value of the first pressure according to the first pressure and the second
  • the preset relationship determines a second voltage, and the second preset relationship is a correspondence between each of the second pressure ranges and each of the second voltages; and outputs a second voltage to the piezoelectric ceramics 101.
  • the piezoelectric ceramic 101 is further configured to: if the piezoelectric ceramic 101 receives the second voltage output by the controller 102, generate a second shape variable according to the second voltage, The second voltage has a positive correlation with the second shape variable.
  • the pressure detecting device detects the first voltage outputted by the piezoelectric ceramic 101 through the controller 102. Go to the first pressure, and the controller 102 determines the target operation according to the first pressure and the first preset relationship. It can be understood that if the person presses the piezoelectric ceramic 101 in the pressure detecting device with a finger, the controller 102 Different target operations can be determined according to different pressing strengths of the person, for example, pressing the corresponding target operation: returning to the main interface; in the lock screen state, tapping the corresponding target operation: unlocking.
  • the pressure detecting device in the present application can effectively realize the method of determining the target operation, and the use of the piezoelectric ceramic as the detecting element can effectively reduce the volume of the pressure detecting device, and at the same time, without using other additional devices such as a linear motor, Can effectively save costs.
  • the pressure detecting device of the present application further includes: a glass cover 601, a fingerprint sensor 603, and a mobile phone case 604.
  • the glass cover 601 can be, for example, an upper side of the mobile phone case 604, and the fingerprint sensor 603.
  • One side is attached to the glass cover 601, the other side of the fingerprint sensor 603 is attached to the piezoelectric ceramic 602, the fingerprint sensor 603 and the piezoelectric ceramic 602 are located inside the mobile phone case 604, and the fingerprint sensor 603 and the piezoelectric ceramic 602 are used by the mobile phone. Covered by the housing 604.
  • a through hole is opened in the glass cover 601, and the fingerprint sensor 603 is placed in the through hole, so that the fingerprint sensor 603 is exposed to the glass cover 601, for other possible Connection method, this application does not impose any restrictions.
  • glass cover 601 on the upper side of the mobile phone case 604 may also be made of other materials, such as metal, and the present application does not impose any limitation.
  • the sensor used for the fingerprint verification function by the fingerprint sensor 603 may also be replaced with other sensors of similar functions, and the present application does not impose any limitation.
  • the pressure detecting device further includes: a housing, the piezoelectric ceramic is attached to the inner side of the housing, the controller is disposed in the housing, and the housing covers the piezoelectric ceramic, and A force applied to the outside of the housing, the piezoelectric ceramic receiving the first pressure produces a first deformation.
  • the pressure detecting device further comprises: a housing and a button, the housing has a through hole, and the button is attached to the piezoelectric ceramic, so that when the button is pressed, the piezoelectric ceramic is also Pressing produces a first shape variable, then placing the button in the through hole such that the button is exposed to the surface of the housing and the piezoelectric ceramic is placed inside the housing, and in addition, the controller is also located inside the housing, at this time, based on the button applied The force on the piezoelectric ceramic receives the first pressure to produce a first shape variable.
  • FIG. 8 is a schematic structural view showing application of four piezoelectric ceramics to a mobile phone terminal, wherein piezoelectric ceramics on the upper right side edge are used to constitute a volume key on the mobile phone terminal; and three piezoelectric ceramics on the lower edge are used.
  • the three function keys that make up the mobile terminal can be noted that the pressure detecting device in the present application can be used not only for a mobile phone terminal but also for other terminal devices such as a wearable device; in addition, one terminal device can include at least one piezoelectric ceramic, which can be visually applied. The scene is set, and there is no restriction on this application.
  • FIG. 9 is a schematic diagram of a working principle of the pressure detecting device, and the related operations and beneficial effects performed by the pressure detecting device are similar to those described in the first embodiment, and can be referred to in the first embodiment. The related description is not repeated here.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative, for example, of the unit Partitioning is only a logical function partitioning. In actual implementation, there may be another way of dividing. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • a computer readable storage medium A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
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Abstract

L'invention concerne un procédé de détermination d'opération cible, un appareil de détection de pression et un dispositif terminal, permettant de réduire les dimensions et le coût d'un appareil de détection de pression. Selon le procédé de détermination d'opération cible : une céramique piézoélectrique (101) reçoit une première pression et génère une première déformation (401); la céramique piézoélectrique (101) génère une première tension en fonction de la première déformation (402); un dispositif de commande (102) détermine la valeur de pression de la première pression conformément à la première tension (403); et le dispositif de commande (102) détermine une opération cible selon la valeur de pression de la première pression et une première relation prédéfinie (404).
PCT/CN2017/096754 2017-08-10 2017-08-10 Procédé de détermination d'opération cible, appareil de détection de pression et dispositif terminal WO2019028724A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201780079328.9A CN110088716B (zh) 2017-08-10 2017-08-10 一种确定目标操作的方法、压力检测装置及终端设备
CN202110189680.6A CN113050824B (zh) 2017-08-10 2017-08-10 一种确定目标操作的方法、压力检测装置及终端设备
PCT/CN2017/096754 WO2019028724A1 (fr) 2017-08-10 2017-08-10 Procédé de détermination d'opération cible, appareil de détection de pression et dispositif terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/096754 WO2019028724A1 (fr) 2017-08-10 2017-08-10 Procédé de détermination d'opération cible, appareil de détection de pression et dispositif terminal

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WO2019028724A1 true WO2019028724A1 (fr) 2019-02-14

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